A pregnancy test performed on the same date as a preventive service may be reported separately using the CPT code appropriate to the test (e.g., 81025, âUrine pregnancy test, by visual color comparison methodsâ) and a diagnosis code from the V72.4X series (pregnancy examination or test).
This process is called continental drift. The plates move because of convection currents in the Earth's mantle. These are driven by the heat produced by the decay of radioactive elements and heat left over from the formation of the Earth.
Plate tectonics involves the movements of Earthâs lithospheric plates relative to one another over the planetâs weak asthenosphere. This activity changes the positions of all plates with respect to Earthâs spin axis and the Equator.